English verb conjugation
CAN TREMBLE

Regular verb: tremble - trembled - trembled

Affirmation

Simple form	V-ing form
I can tremble you can tremble she can tremble we can tremble you can tremble they can tremble	I can be trembling you can be trembling she can be trembling we can be trembling you can be trembling they can be trembling
Perfect	V-ing perfect
I can have trembled you can have trembled she can have trembled we can have trembled you can have trembled they can have trembled	I can have been trembling you can have been trembling she can have been trembling we can have been trembling you can have been trembling they can have been trembling

Negation

Simple form	V-ing form
I can't tremble you can't tremble she can't tremble we can't tremble you can't tremble they can't tremble	I can't be trembling you can't be trembling she can't be trembling we can't be trembling you can't be trembling they can't be trembling
Perfect	V-ing perfect
I can't have trembled you can't have trembled she can't have trembled we can't have trembled you can't have trembled they can't have trembled	I can't have been trembling you can't have been trembling she can't have been trembling we can't have been trembling you can't have been trembling they can't have been trembling

Interrogative form

Simple form	V-ing form
can I tremble? can you tremble? can she tremble? can we tremble? can you tremble? can they tremble?	can I be trembling? can you be trembling? can she be trembling? can we be trembling? can you be trembling? can they be trembling?
Perfect	V-ing perfect
can I have trembled? can you have trembled? can she have trembled? can we have trembled? can you have trembled? can they have trembled?	can I have been trembling? can you have been trembling? can she have been trembling? can we have been trembling? can you have been trembling? can they have been trembling?

Interro-negative form

Simple form	V-ing form
can't I tremble? can't you tremble? can't she tremble? can't we tremble? can't you tremble? can't they tremble?	can't I be trembling? can't you be trembling? can't she be trembling? can't we be trembling? can't you be trembling? can't they be trembling?
Perfect	V-ing perfect
can't I have trembled? can't you have trembled? can't she have trembled? can't we have trembled? can't you have trembled? can't they have trembled?	can't I have been trembling? can't you have been trembling? can't she have been trembling? can't we have been trembling? can't you have been trembling? can't they have been trembling?